I want to learn English in high level.

[UM Chakma]

Hi,
'I want to learn English in high level'
Is my context okay? I beleive you can unsdertand what I am trying to mean by my context and I think there may be a better one than my one. I mean I better expand the context. Perhaps you may have a better word for 'high level'. If you have a better one please suggest it for me.

Thanks.

[probus]

I want to become fluent (or perfectly fluent) in English.

[UM Chakma]

I don't think I meant it. Let me give more details/information that I wanted to mean. I want to learn English which will help me to talk like an official person, to write official letters and papers, to deal with businessmen, to be fluent in English etc. I believe high level people or VIP people never talk like we do. So how do I say that I want to learn English to be able to fulfill things I mentioned.

I just can think of a context, ie; I want to learn English in high level. Can you think more of it?